:root {
  --color-primary: #1f2a44;
  --color-primary-soft: #2c3a5c;
  --color-accent: #c98a4b;
  --color-accent-deep: #a96f36;
  --color-bg: #f7f7f5;
  --color-surface: #ffffff;
  --color-line: #e2e0da;
  --color-line-strong: #cfccc4;
  --color-text: #1f2a44;
  --color-text-soft: #4a5468;
  --color-muted: #6b7280;
  --font-serif: "Songti SC", "SimSun", "Noto Serif SC", "Source Han Serif SC", Georgia, serif;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", Arial, sans-serif;
  --font-mono: "SFMono-Regular", "Menlo", "Consolas", monospace;
  --container: 1120px;
  --reading: 720px;
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --shadow-soft: 0 1px 2px rgba(31, 42, 68, 0.05);
  --shadow-card: 0 2px 10px rgba(31, 42, 68, 0.07);
  --header-height: 72px;
}

/* ==========================================================================
   base
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background-color: var(--color-bg);
  font-feature-settings: "tnum" 1;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-primary);
}

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

a:hover,
a:focus-visible {
  color: var(--color-accent-deep);
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

figure {
  margin: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
}

button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 10px 18px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 0 0 var(--radius-sm) 0;
}

.skip-link:focus {
  left: 0;
  color: #fff;
}

/* ==========================================================================
   layout —— 全站骨架
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
  transition: box-shadow 0.2s ease;
}

.site-header.is-tight {
  box-shadow: 0 1px 8px rgba(31, 42, 68, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: var(--container);
  min-height: var(--header-height);
  margin: 0 auto;
  padding: 0 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex: 0 0 auto;
  padding: 6px 0;
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 600;
  color: var(--color-primary);
  border-bottom: 2px solid transparent;
}

.brand:hover,
.brand:focus-visible {
  color: var(--color-accent-deep);
  border-bottom-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-sm);
  position: relative;
}

.nav-toggle::before,
.nav-toggle::after,
.nav-toggle span {
  content: "";
  position: absolute;
  left: 11px;
  right: 11px;
  height: 2px;
  background: var(--color-primary);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle::before {
  top: 15px;
}

.nav-toggle span {
  top: 21px;
}

.nav-toggle::after {
  top: 27px;
}

.nav-toggle[aria-expanded="true"]::before {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"]::after {
  transform: translateY(-6px) rotate(-45deg);
}

.site-nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: flex-end;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-list > li {
  display: block;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  font-size: 15px;
  color: var(--color-text-soft);
  border-bottom: 2px solid transparent;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-line-strong);
}

.nav-link.is-current {
  color: var(--color-primary);
  font-weight: 600;
  border-bottom-color: var(--color-accent);
}

.site-main {
  display: block;
}

.home-main {
  background: var(--color-bg);
}

.inner-main {
  max-width: var(--container);
  margin: 0 auto;
  padding: 28px 24px 72px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
  font-size: 14px;
  color: var(--color-muted);
}

.breadcrumb a {
  color: var(--color-muted);
  border-bottom: 1px solid transparent;
}

.breadcrumb a:hover,
.breadcrumb a:focus-visible {
  color: var(--color-accent-deep);
  border-bottom-color: var(--color-accent);
}

.breadcrumb-sep {
  color: var(--color-line-strong);
}

.breadcrumb-current {
  color: var(--color-text-soft);
}

.page-header {
  max-width: var(--reading);
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-line);
}

.page-title {
  font-size: 34px;
  line-height: 1.3;
  margin-bottom: 14px;
}

.page-description {
  font-size: 16px;
  color: var(--color-text-soft);
  line-height: 1.8;
}

.section {
  padding: 44px 0;
  border-top: 1px solid var(--color-line);
}

.section:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.section-head {
  max-width: var(--reading);
  margin-bottom: 28px;
}

.section-title {
  font-size: 24px;
  margin-bottom: 12px;
}

.section-desc,
.section-lead,
.section-intro {
  font-size: 15px;
  color: var(--color-text-soft);
  line-height: 1.8;
}

.section-lead {
  max-width: var(--reading);
  margin-bottom: 26px;
}

.section-more {
  margin-top: 24px;
  font-size: 15px;
}

.text-link {
  display: inline-block;
  padding-bottom: 2px;
  color: var(--color-accent-deep);
  border-bottom: 1px solid var(--color-accent);
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ==========================================================================
   components —— 按钮 / 卡片 / 表格 / 折叠 / 媒体
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 22px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-accent-deep);
  border-color: var(--color-accent-deep);
  color: #fff;
}

.btn-ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-line-strong);
}

.btn-ghost:hover,
.btn-ghost:focus-visible {
  color: var(--color-accent-deep);
  border-color: var(--color-accent);
}

.content-media,
.hero-figure,
.direction-figure,
.report-media,
.aside-media,
.section-media,
.faq-figure {
  margin: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.content-media img,
.hero-figure img,
.direction-figure img,
.report-media img,
.aside-media img,
.section-media img,
.faq-figure img {
  width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--color-line);
}

.content-media figcaption,
.hero-figure figcaption,
.direction-figure figcaption,
.report-media-caption,
.aside-media-caption,
.section-media figcaption,
.faq-figure figcaption {
  padding: 12px 16px;
  font-size: 13px;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
  background: var(--color-surface);
}

.table-wrap {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.data-table {
  min-width: 640px;
  font-size: 15px;
}

.table-caption {
  padding: 14px 18px;
  text-align: left;
  font-size: 14px;
  color: var(--color-muted);
  border-bottom: 1px solid var(--color-line);
}

.data-table thead th {
  padding: 14px 18px;
  text-align: left;
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-primary);
  background: #f2f1ed;
  border-bottom: 1px solid var(--color-line-strong);
  white-space: nowrap;
}

.data-table tbody th,
.data-table tbody td {
  padding: 14px 18px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-text-soft);
  line-height: 1.7;
}

.data-table tbody th {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-primary);
  background: #fbfbf9;
}

.data-table tbody tr:last-child th,
.data-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ==========================================================================
   pages —— 首页
   ========================================================================== */

.hero {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-line);
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(520px, 1fr) minmax(360px, 460px);
  gap: 48px;
  align-items: start;
  max-width: var(--container);
  margin: 0 auto;
  padding: 56px 24px 48px;
}

.hero-copy {
  max-width: 620px;
}

.hero-eyebrow {
  margin-bottom: 14px;
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--color-accent-deep);
}

.hero-title {
  font-size: 40px;
  line-height: 1.28;
  margin-bottom: 18px;
}

.hero-lead {
  font-size: 17px;
  line-height: 1.85;
  color: var(--color-text-soft);
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
}

.hero-points {
  display: grid;
  gap: 10px;
  padding-top: 22px;
  border-top: 1px solid var(--color-line);
}

.hero-point {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  color: var(--color-text-soft);
}

.hero-point::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 2px;
}

.hero-figure img {
  aspect-ratio: 4 / 3;
}

.content-media-primary {
  grid-column: 1 / -1;
  margin-top: 8px;
}

.content-media-primary img {
  aspect-ratio: 21 / 9;
}

.section-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.service-rows {
  border-top: 1px solid var(--color-line);
}

.service-row {
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(200px, 1.1fr) minmax(260px, 1.5fr) auto;
  gap: 20px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
}

.service-name {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
}

.service-audience {
  font-size: 14px;
  color: var(--color-muted);
}

.service-scope {
  font-size: 15px;
  color: var(--color-text-soft);
}

.service-link {
  justify-self: end;
  font-size: 14px;
  color: var(--color-accent-deep);
  border-bottom: 1px solid var(--color-accent);
  white-space: nowrap;
}

.service-link:hover,
.service-link:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.work-groups {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-line);
}

.work-group {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr);
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
}

.work-year {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-accent-deep);
  letter-spacing: 0.02em;
}

.work-body {
  max-width: var(--reading);
}

.work-topic {
  font-size: 18px;
  margin-bottom: 6px;
}

.work-note {
  font-size: 15px;
  color: var(--color-text-soft);
}

.records-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(300px, 1fr);
  gap: 40px;
  align-items: start;
}

.records-subtitle {
  font-size: 18px;
  margin-bottom: 16px;
}

.record-items {
  border-top: 1px solid var(--color-line);
}

.record-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-line);
}

.record-time {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-muted);
}

.record-type {
  font-size: 15px;
  color: var(--color-text-soft);
}

.record-note {
  grid-column: 2 / 3;
  font-size: 14px;
  color: var(--color-muted);
}

.records-aside {
  padding: 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.records-aside-text {
  font-size: 15px;
  color: var(--color-text-soft);
  margin-bottom: 16px;
}

.records-aside-list {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
  padding-left: 0;
}

.records-aside-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--color-text-soft);
}

.records-aside-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.flow-steps {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-line);
}

.flow-step {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
}

.flow-index {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--color-accent);
}

.flow-body {
  max-width: var(--reading);
}

.flow-name {
  font-size: 18px;
  margin-bottom: 6px;
}

.flow-owner,
.flow-output {
  font-size: 14px;
  color: var(--color-text-soft);
}

.flow-owner {
  margin-bottom: 4px;
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(300px, 1fr);
  gap: 40px;
  align-items: start;
}

.faq-briefs {
  border-top: 1px solid var(--color-line);
}

.faq-brief {
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line);
}

.faq-question {
  font-size: 17px;
  margin-bottom: 8px;
}

.faq-answer {
  font-size: 15px;
  color: var(--color-text-soft);
}

.faq-entry {
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-lg);
}

.entry-title {
  font-size: 18px;
  margin-bottom: 12px;
}

.entry-text {
  font-size: 15px;
  color: var(--color-text-soft);
  margin-bottom: 20px;
}

.faq-entry .btn {
  display: flex;
  width: 100%;
  margin-bottom: 10px;
}

.faq-entry .btn:last-child {
  margin-bottom: 0;
}

/* ==========================================================================
   pages —— 服务方向
   ========================================================================== */

.page-service-directions .section-filter {
  border-top: 0;
  padding-top: 0;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 26px;
}

.filter-btn {
  min-height: 44px;
  padding: 8px 18px;
  font-size: 14px;
  color: var(--color-text-soft);
  background: var(--color-surface);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
}

.filter-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-accent);
}

.filter-btn.is-active {
  color: #fff;
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.index-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 0 24px;
  border-top: 1px solid var(--color-line);
}

.index-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-line);
}

.index-item a {
  font-size: 15px;
  color: var(--color-primary);
  border-bottom: 1px solid transparent;
}

.index-item a:hover,
.index-item a:focus-visible {
  color: var(--color-accent-deep);
  border-bottom-color: var(--color-accent);
}

.index-tag {
  flex: 0 0 auto;
  font-size: 13px;
  color: var(--color-muted);
}

.direction-block {
  padding: 28px 0;
  border-bottom: 1px solid var(--color-line);
}

.direction-block:last-of-type {
  border-bottom: 0;
}

.direction-head {
  max-width: var(--reading);
  margin-bottom: 20px;
}

.direction-name {
  font-size: 20px;
  margin-bottom: 8px;
}

.direction-summary {
  font-size: 15px;
  color: var(--color-text-soft);
}

.direction-figure {
  max-width: var(--reading);
  margin-bottom: 22px;
}

.direction-figure img {
  aspect-ratio: 16 / 9;
}

.direction-body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.direction-col {
  min-width: 0;
}

.direction-sub {
  font-size: 16px;
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-line);
}

.direction-list {
  display: grid;
  gap: 8px;
}

.direction-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--color-text-soft);
}

.direction-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 1px;
  background: var(--color-accent);
}

.boundary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 28px;
  margin-bottom: 28px;
}

.boundary-col {
  min-width: 0;
  padding: 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.boundary-sub {
  font-size: 17px;
  margin-bottom: 14px;
}

.boundary-list {
  display: grid;
  gap: 10px;
}

.boundary-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--color-text-soft);
}

.boundary-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
}

.next-links {
  padding-top: 22px;
  border-top: 1px solid var(--color-line);
}

.next-text {
  font-size: 15px;
  color: var(--color-text-soft);
  margin-bottom: 12px;
}

.link-cta {
  display: inline-block;
  margin: 0 18px 8px 0;
  font-size: 15px;
  color: var(--color-accent-deep);
  border-bottom: 1px solid var(--color-accent);
}

.link-cta:hover,
.link-cta:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ==========================================================================
   pages —— 年度报告
   ========================================================================== */

.page-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 320px);
  gap: 48px;
  align-items: start;
}

.layout-main {
  min-width: 0;
}

.report-section {
  padding: 34px 0;
  border-top: 1px solid var(--color-line);
}

.report-section:first-child {
  padding-top: 0;
  border-top: 0;
}

.report-section .section-title {
  margin-bottom: 10px;
}

.report-section .section-lead {
  margin-bottom: 24px;
}

.overview-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.overview-item {
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.overview-name {
  font-size: 17px;
  margin-bottom: 8px;
}

.overview-desc {
  font-size: 14px;
  color: var(--color-text-soft);
}

.focus-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-line);
}

.focus-item {
  padding: 18px 0;
  border-bottom: 1px solid var(--color-line);
}

.focus-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 6px;
}

.focus-time {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-accent-deep);
}

.focus-title {
  font-size: 17px;
}

.focus-desc {
  max-width: var(--reading);
  font-size: 15px;
  color: var(--color-text-soft);
}

.report-media {
  margin-bottom: 24px;
}

.report-media img {
  aspect-ratio: 16 / 9;
}

.timeline-list {
  position: relative;
  padding-left: 24px;
  border-left: 1px solid var(--color-line-strong);
}

.timeline-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 20px;
  padding: 0 0 22px 6px;
  position: relative;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -30px;
  top: 9px;
  width: 9px;
  height: 9px;
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
}

.timeline-time {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-muted);
}

.timeline-body {
  min-width: 0;
  max-width: var(--reading);
}

.timeline-title {
  font-size: 16px;
  margin-bottom: 6px;
}

.timeline-desc {
  font-size: 14px;
  color: var(--color-text-soft);
}

.metrics-note {
  margin-top: 16px;
  font-size: 14px;
  color: var(--color-muted);
}

.metrics-note a {
  color: var(--color-accent-deep);
  border-bottom: 1px solid var(--color-accent);
}

.metrics-note a:hover,
.metrics-note a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.plan-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.plan-item {
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-top: 3px solid var(--color-accent);
  border-radius: var(--radius-lg);
}

.plan-name {
  font-size: 17px;
  margin-bottom: 8px;
}

.plan-desc {
  font-size: 14px;
  color: var(--color-text-soft);
}

.report-entry {
  margin-top: 28px;
  padding: 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.report-entry-text {
  font-size: 15px;
  color: var(--color-text-soft);
  margin-bottom: 14px;
}

.report-entry-links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.entry-link {
  font-size: 15px;
  color: var(--color-accent-deep);
  border-bottom: 1px solid var(--color-accent);
}

.entry-link:hover,
.entry-link:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.report-aside {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  display: grid;
  gap: 24px;
}

.aside-block {
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.aside-title {
  font-size: 16px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-line);
}

.aside-list {
  display: grid;
  gap: 10px;
}

.aside-list a {
  display: block;
  font-size: 14px;
  color: var(--color-text-soft);
}

.aside-list a:hover,
.aside-list a:focus-visible {
  color: var(--color-accent-deep);
}

.aside-media img {
  aspect-ratio: 3 / 2;
}

.aside-note p {
  font-size: 14px;
  color: var(--color-text-soft);
}

/* ==========================================================================
   pages —— 合作流程
   ========================================================================== */

.section-overview .section-lead a {
  color: var(--color-accent-deep);
  border-bottom: 1px solid var(--color-accent);
}

.section-overview .section-lead a:hover,
.section-overview .section-lead a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.flow-overview-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 20px;
}

.flow-overview-item {
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.flow-step-no {
  display: inline-block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--color-accent);
}

.flow-step-name {
  font-size: 17px;
  margin-bottom: 8px;
}

.flow-step-desc {
  font-size: 14px;
  color: var(--color-text-soft);
}

.section-phase .section-media {
  max-width: var(--reading);
  margin-bottom: 26px;
}

.section-phase .section-media img {
  aspect-ratio: 16 / 9;
}

.step-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--color-line);
}

.step-item {
  padding: 20px 0;
  border-bottom: 1px solid var(--color-line);
}

.step-name {
  font-size: 17px;
  margin-bottom: 12px;
}

.step-meta {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 6px 20px;
  max-width: var(--reading);
  margin: 0;
}

.step-meta dt {
  font-size: 14px;
  color: var(--color-muted);
}

.step-meta dd {
  margin: 0;
  font-size: 15px;
  color: var(--color-text-soft);
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.entry-card {
  display: flex;
  flex-direction: column;
  padding: 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.entry-card .entry-title {
  font-size: 17px;
  margin-bottom: 10px;
}

.entry-card .entry-desc {
  flex: 1 1 auto;
  font-size: 14px;
  color: var(--color-text-soft);
  margin-bottom: 16px;
}

.entry-card .entry-link {
  align-self: flex-start;
}

/* ==========================================================================
   pages —— 常见问题
   ========================================================================== */

.toc {
  max-width: var(--reading);
  margin-bottom: 32px;
  padding: 20px 22px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.toc-title {
  font-size: 16px;
  margin-bottom: 12px;
}

.toc-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 8px 20px;
}

.toc-list a {
  display: block;
  font-size: 14px;
  color: var(--color-text-soft);
}

.toc-list a:hover,
.toc-list a:focus-visible {
  color: var(--color-accent-deep);
}

.page-faq .faq-figure {
  max-width: var(--reading);
  margin-bottom: 32px;
}

.page-faq .faq-figure img {
  aspect-ratio: 16 / 9;
}

.faq-group {
  max-width: var(--reading);
  padding: 30px 0;
  border-top: 1px solid var(--color-line);
}

.faq-group .section-title {
  margin-bottom: 10px;
}

.faq-group .section-intro {
  margin-bottom: 20px;
}

.faq-group .section-intro a {
  color: var(--color-accent-deep);
  border-bottom: 1px solid var(--color-accent);
}

.faq-group .section-intro a:hover,
.faq-group .section-intro a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.faq-item {
  border-bottom: 1px solid var(--color-line);
}

.faq-item summary.faq-question {
  position: relative;
  display: block;
  padding: 16px 40px 16px 0;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
  list-style: none;
}

.faq-item summary.faq-question::-webkit-details-marker {
  display: none;
}

.faq-item summary.faq-question::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 24px;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-accent);
  border-bottom: 2px solid var(--color-accent);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.faq-item[open] summary.faq-question::after {
  transform: rotate(-135deg);
  top: 27px;
}

.faq-item summary.faq-question:hover {
  color: var(--color-accent-deep);
}

.faq-item .faq-answer {
  padding: 0 0 18px;
}

.faq-item .faq-answer p {
  font-size: 15px;
  color: var(--color-text-soft);
}

.faq-item .faq-answer a {
  color: var(--color-accent-deep);
  border-bottom: 1px solid var(--color-accent);
}

.faq-item .faq-answer a:hover,
.faq-item .faq-answer a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.faq-next {
  max-width: var(--reading);
  padding-top: 30px;
  border-top: 1px solid var(--color-line);
}

.faq-next .section-intro {
  margin-bottom: 22px;
}

.faq-next-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.next-card {
  display: flex;
  flex-direction: column;
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
}

.next-card-title {
  font-size: 16px;
  margin-bottom: 10px;
}

.next-card p {
  flex: 1 1 auto;
  font-size: 14px;
  color: var(--color-text-soft);
  margin-bottom: 14px;
}

.next-card-link {
  align-self: flex-start;
  font-size: 14px;
  color: var(--color-accent-deep);
  border-bottom: 1px solid var(--color-accent);
}

.next-card-link:hover,
.next-card-link:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ==========================================================================
   pages —— 404
   ========================================================================== */

.site-error .error-main {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height) - 260px);
  padding: 64px 24px;
}

.error-block {
  max-width: 640px;
  text-align: left;
}

.error-code {
  font-family: var(--font-mono);
  font-size: 64px;
  font-weight: 600;
  line-height: 1;
  color: var(--color-accent);
  margin-bottom: 18px;
}

.error-title {
  font-size: 30px;
  margin-bottom: 14px;
}

.error-desc {
  font-size: 16px;
  color: var(--color-text-soft);
  margin-bottom: 26px;
}

.error-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
}

.error-links {
  display: grid;
  gap: 10px;
  padding-top: 22px;
  border-top: 1px solid var(--color-line);
}

.error-links a {
  font-size: 15px;
  color: var(--color-accent-deep);
  border-bottom: 1px solid transparent;
}

.error-links a:hover,
.error-links a:focus-visible {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

/* ==========================================================================
   layout —— 页脚
   ========================================================================== */

.site-footer {
  background: var(--color-primary);
  color: #d6dbe6;
}

.footer-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 48px 24px 28px;
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}

.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 16px;
}

.footer-list {
  display: grid;
  gap: 8px;
}

.footer-list a {
  display: inline-block;
  padding: 4px 0;
  font-size: 14px;
  color: #c3cada;
  border-bottom: 1px solid transparent;
}

.footer-list a:hover,
.footer-list a:focus-visible {
  color: #ffffff;
  border-bottom-color: var(--color-accent);
}

.footer-bottom {
  padding-top: 24px;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 16px;
  color: #ffffff;
  margin-bottom: 8px;
}

.footer-note {
  font-size: 13px;
  line-height: 1.8;
  color: #a9b2c6;
  margin-bottom: 8px;
}

.footer-copy {
  font-size: 13px;
  color: #8f99ae;
  margin-bottom: 16px;
}

.back-top {
  display: inline-block;
  padding: 6px 0;
  font-size: 14px;
  color: #d6dbe6;
  border-bottom: 1px solid rgba(255, 255, 255, 0.32);
}

.back-top:hover,
.back-top:focus-visible {
  color: #ffffff;
  border-bottom-color: var(--color-accent);
}

/* ==========================================================================
   responsive
   ========================================================================== */

@media (max-width: 960px) {
  .header-inner {
    padding: 0 20px;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: block;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-line);
    box-shadow: 0 8px 18px rgba(31, 42, 68, 0.08);
  }

  .nav-list {
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 16px;
  }

  .nav-list.is-open {
    display: flex;
  }

  .nav-link {
    display: flex;
    width: 100%;
    padding: 0 4px;
    border-bottom: 1px solid var(--color-line);
  }

  .nav-list > li:last-child .nav-link {
    border-bottom: 0;
  }

  .nav-link.is-current {
    border-bottom-color: var(--color-line);
    box-shadow: inset 3px 0 0 var(--color-accent);
    padding-left: 12px;
  }

  .inner-main {
    padding: 24px 20px 60px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
    padding: 40px 20px 36px;
  }

  .hero-copy {
    max-width: none;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-figure {
    order: 2;
  }

  .section-inner {
    padding: 0 20px;
  }

  .service-row {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 8px 16px;
    align-items: start;
  }

  .service-name {
    grid-column: 1 / 2;
  }

  .service-link {
    grid-column: 2 / 3;
    grid-row: 1 / 2;
    align-self: center;
  }

  .service-audience,
  .service-scope {
    grid-column: 1 / -1;
  }

  .records-layout,
  .faq-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
  }

  .page-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 32px;
  }

  .report-aside {
    position: static;
  }

  .footer-top {
    gap: 28px;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .brand {
    font-size: 19px;
  }

  .page-title {
    font-size: 26px;
  }

  .hero-title {
    font-size: 26px;
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-actions .btn {
    flex: 1 1 100%;
  }

  .section {
    padding: 34px 0;
  }

  .section-title {
    font-size: 21px;
  }

  .work-group {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .record-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
  }

  .record-note {
    grid-column: 1 / -1;
  }

  .flow-step {
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
  }

  .flow-index {
    font-size: 19px;
  }

  .timeline-list {
    padding-left: 18px;
  }

  .timeline-item {
    grid-template-columns: minmax(0, 1fr);
    gap: 6px;
    padding-left: 4px;
  }

  .timeline-item::before {
    left: -24px;
  }

  .step-meta {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px 0;
  }

  .step-meta dd {
    margin-bottom: 10px;
  }

  .footer-inner {
    padding: 36px 20px 24px;
  }

  .footer-top {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

  .error-code {
    font-size: 48px;
  }

  .error-title {
    font-size: 24px;
  }

  .error-actions .btn {
    flex: 1 1 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}